Today I wanted to talk x Today I would like to talk

Eu pesquisei mais, e vi esse site, ele explica que apesar de não ser gramaticalmente correto, é comum usar em algumas situações.

http://www.phrasemix.com/examples/i-wan ... uct-launch

"Some phrases that can be used after "wanted" include:

I wanted to ask...

I wanted to tell you...

I wanted to check to see if...

I wanted to remind you that...

I wanted to let you know that...

I wanted to find out whether...

Note that this is in past tense: you say "I wanted to _" instead of "I want to _". There's no grammatical reason for making it past tense; it just makes your sentence sound more polite. When you say it this way, it sounds like an explanation for why you're calling, why you're visiting, etc. "